20180225, 21:35  #320 
"Nuri, the dragon :P"
Jul 2016
Good old Germany
5·7·23 Posts 
Great, I´ll skip these numbers.
The next "cleanup" will run tomorrow after work. 
20180226, 16:37  #321 
Sep 2009
7·17^{2} Posts 
I've finished running my script to prove 2^a2^b1 numbers prime. It proved 3961 numbers prime.
I also proved a few by hand. Some where N+1 needed algebraic factors adding. And a few numbers like 2^29092049 which the script didn't recognize. So I've done about 4000 in total. The remaining 2^a2^b1 numbers mostly can't be proved that way (I've not checked them all manually). Some might be provable by N1 if N1 has a large PRP cofactor that can be proved by certificate. Chris 
20180226, 18:01  #322 
Sep 2009
7·17^{2} Posts 
A few thousand more PRPs like that have just appeared, ranging from 1000 to 2000+ digits. So I'll let my script loose again.
Chris 
20180227, 16:39  #323 
Sep 2009
11111100111_{2} Posts 
That run didn't do much. So I updated the script to add algebraic factors of N+1 before seeing if it could prove numbers prime. That has proved 280 numbers prime so far (I have one range missed because I hit 750 CPU seconds per hour still to do).
So let your certificates lose on the rest. Chris 
20180227, 16:54  #324 
Sep 2009
2023_{10} Posts 
And another 8 proved prime in the last range.
I'll not do any more unless some more such numbers turn up. Chris 
20180302, 17:01  #325 
Sep 2009
7×17^{2} Posts 
Some more have turned up. I've rerun my script and proved 1127 numbers prime.
It appears that whoever is adding them is adding them in order of size so searching from the largest seen so far upwards will save time rechecking ones that can't be proved this way. I'll do that every few days until I stop finding new numbers. Chris 
20180304, 16:26  #326 
Sep 2009
7×17^{2} Posts 
And another 278 proved between 2410 and 2709 digits.
Chris 
20180306, 13:32  #327 
"Nuri, the dragon :P"
Jul 2016
Good old Germany
805_{10} Posts 
I´m back now. Just removed anything <700 digits. Now going up to 1300dd, roughly 500 numbers.
May take some time. I´ll extend later to 1500dd. 
20180307, 16:46  #328 
Sep 2009
7E7_{16} Posts 
Another 197 proved between 2700 and 3010 digits (plus a few done by hand).
Chris 
20180307, 19:35  #329  
"Ed Hall"
Dec 2009
Adirondack Mtns
2·11·167 Posts 
Quote:
I'll be back running Primo soon, but I will need to upgrade, too. Unfortunately, upgrading Primo will probably mean editing all my scripts that run it everywhere. 

20180307, 23:15  #330  
"Nuri, the dragon :P"
Jul 2016
Good old Germany
1445_{8} Posts 
Quote:
Removed ~950 PRP´s <1550dd. 

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